Importing a Binary version of an FBX with the option Use T0As Ref Pose enabled will cause deformations of the mesh

UE - Editor - Content Pipeline - Import and Export - Jun 3, 2019

When importing a binary FBX with the option Use T0As Ref Pose enable it appears that some models will be slightly deformed (see attached image). ...

Wrong IDE loads when Visual Studio 2019 is selected

UE - Foundation - Cpp Tools - May 22, 2019

Visual Studio 2019 does not load even when it is selected as the chosen IDE. Instead the editor loads Visual Studio 2017. If you create a new C++ class after switching the IDE and restarting the Edi ...

Scene component appears to render in the incorrect location after calling SetWorldLocation() in editor

UE - Gameplay - May 16, 2019

Calling SetWorldLocation() on a USceneComponent derived component causes the rendering for the component to stop updating. The position can still be modified and the values will change, but it rende ...

Spline Component Array Logic resulting in "Editor soft lock"

UE - Gameplay - May 6, 2019

ReRunConstrictionScripts() on Tick() is causing an Editor "Soft- Lock" slow-down, When dragging a Spline Actor created from Blueprint; which utilizes custom construction script logic detailed in the ...

BeginPlay execution order is different when using Game Mode instead of Game Mode Base

UE - Gameplay - Blueprint - Apr 26, 2019

Using Game Mode instead of Game Mode Base causes the Begin Play event to trigger in a different order. This is shown in the reproduction with the Begin Play of the Player Controller and the Game Mod ...

Refraction of Ray Traced Translucency in Path Trace View is Incorrect

UE - Graphics Features - Lumen - Apr 8, 2019

Refraction of Ray Traced Translucency in Path Trace View is Incorrect. Found in 4.22 CL# 5660361 and 4.23 CL# 5779284 ...

Blutility Shelf tab not recognized on restart

Tools - Mar 13, 2019

Restarting the editor after docking a Blutility Shelf causes the tab to no longer be recognized. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5365847), 4.23 (CL - 4980862) ...

Input Axis Mapped to 'Pinch' no longer sends Axis Value

UE - Platform - Mobile - Feb 15, 2019

Axis Event mapped to pinch no longer returns values. Working in 4.19 Confirmed on Android + iOS  Confirmed in MAIN 4.23 @ CL 4961509 ...

Daydream "Quit Game" node returns to homescreen of device instead of Daydream VR home

UE - Platform - XR - Feb 14, 2019

Google App store rejects UE4 apps with the response: "App switches to a 2-dimensional view unexpectedly When in VR, your app should never display any 2D images. For more information and examples, p ...

Crash occurs in PIE when an Actor calls a method in a UObject that attempts to modify an FString member of the UObject

UE - Foundation - Core - Jan 31, 2019

The Editor will crash in PIE when an Actor calls a method in a UObject that modifies some FString members in the UObject. In the Attached project, the UObject class contains two FString members and ...